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Changes Introduced in V5.3

The following describes the most significant changes which occurred in the AST library between versions V5.2 and V5.3:

  1. The details of how a Frame is aligned with another Frame by the astFindFrame and astConvert functions have been changed. The changes mean that a Frame can now be aligned with an instance of a sub-class of Frame, so long as the number of axes and the Domain values are consistent. For instance, a basic 2-dimensional Frame with Domain ``SKY'' will now align succesfully with a SkyFrame, conversion between the two Frames being achieved using a UnitMap.

  2. The arrays that supply input values for astMapPut1<X> are now declared ``const''.

  3. Added method astMatchAxes to the Frame class. This method allows corresponding axes within two Frames to be identified.

  4. The astAddFrame method can now be used to append one or more axes to all Frames in a FrameSet.


next up previous 264
Next: Changes Introduced in V5.3-1
Up: Changes and New Features
Previous: Changes Introduced in V5.2

AST A Library for Handling World Coordinate Systems in Astronomy
Starlink User Note 211
R.F. Warren-Smith & D.S. Berry
24th May 2011
E-mail:ussc@star.rl.ac.uk

Copyright (C) 2009 Science \& Technology Facilities Council